<meta charset='utf-8'/>
<script  src="/kissy/tools/third-party/jquery.js"></script>

<script >

    $.io({
        url: "../../data/ifModified.jss",
        ifModified: true,
        dataType: 'text',
        success: function (data, s, jq) {
            alert(data);
            alert(jq.statusText);
            alert(jq.getAllResponseHeaders());
            alert("next .........");

            setTimeout(function () {

                $.ajax({
                    url: "../../data/ifModified.jss",
                    ifModified: true,
                    // same with
//                    headers: {
//                        "If-Modified-Since": "Thu, 18 Jul 2002 15:48:32 GMT"
//                    },
                    dataType: 'text',
                    success: function (data, status, jq) {
                        alert(data);
                        alert(jq.statusText);
                        alert(jq.getAllResponseHeaders());
                        //console.log(arguments);
                    }
                });

            }, 100);


        }
    });
</script>